Got sick of manually refreshing my free premarket scanners. This non-API web scraper pulls data from free (delayed) premarket scanner(s) for top gainers, further filtering them with custom parameters such as Change %, Last, Volume, Float.
Uses urllib (web request) and BeautifulSoup (HTML parsing).
Uses thestockmarketwatch.com (premarket scanner) and finance.yahoo.com (float info).
Python3
Clone to your local directory:
git clone https://github.com/ohsyln/topgainers-premarket-scanner
cd topgainers-premarket-scanner
Activate py virtual environment:
source pyvenv/bin/activate
Edit parameters in scanner.py with a text editor:
PERIOD = 30 # seconds per refresh
GAINS_PERCENT = 10 # minimum change %
MAX_LAST = 50 # maximum price in dollars
FLOAT_BTW = [0,150000000] # size of public float
MIN_VOLUME = 100000 # minimum volume
Save changes and run script
python3 scanner.py
MIT